Feature:1. Astonishing Sound: The portable karaoke machine has a built-in professional tuning grade speaker, and breathtaking stereo sound with exceptional clarity and zero distortion by the high-sensitivity drivers, great for home parties and outdoors.2. Reliable Connectivity: Adopts new BT 5.3 technology to ensure instant pairing, providing stable and 50ft long-distance without obstacles. This small singing speaker also supports a memory card, USB, and AUX input connections.3. Lights & Effects: Equipped with colorful LED lights and has an independent button to switch the lights. 4 magical voice effects: monster, baby, female, male, this BT party speaker provides endless fun and happiness for adults and kids.4. Long-Lasting Lifespan: Our small karaoke machine has a long lifespan with 800mAh rechargeable battery technology. It quickly charges and playing about 2-4 hours, in order to make it easy to bring the party with you wherever you go.5. Lightweight & Wonderful Gift: This speaker is small in size and easy to carry. Whenever you go, you can easily take the karaoke machine. Comes with 2 wireless microphones, and it is also a creative gift for your family or friends.Specification:Color: Black, White, Pink (Optional)Model: K18Structure: ABS+AcrylicBT version: 5.3Power Method: Built-in lithium batteryBattery capacity: 400mAh for microphone, 800mAh for speakerSpeaker power: 5WFrequency: 20Hz-20kHzMicrophone pickup: back-type condenser microphoneSocket type: TF/AUX/USB/TCItem Size: 9.5 * 9.5 * 8.7cm/3.74 * 3.74 * 3.43inItem Weight: 475g/16.76ozPackage Size: 15 * 14 * 9.7cm/5.91 * 5.51 * 3.82inPackage Weight: 550g/19.4ozPackage List:1*Karaoke Machine2*Microphones1*Charging Cable1*User Manual